Dynamic overriding of control beam monitoring configuration

ABSTRACT

Methods, systems, and devices for wireless communication are described that support overriding a beam monitoring pattern for control channel transmissions based on channel conditions between a user equipment and a base station. A base station may select a beam monitoring pattern for transmitting control channel transmissions, which may include a pattern in which two or more beams are used for control channel transmissions. In the event that a first beam of the beams used in the beam monitoring pattern meets certain metrics, the use of one or more additional beams according to the beam monitoring pattern may be overridden and transmissions continued using the first beam. The metrics for continuing use of the first beam may include channel quality metrics, a number of consecutive successful transmissions using the first beam, one or more other metrics, or any combination thereof.

CROSS REFERENCES

The present Application for Patent is a Continuation of U.S. patentapplication Ser. No. 15/912,144 by John Wilson, et al., entitled,“Dynamic Overriding of Control Beam Monitoring Configuration” filed Mar.5, 2018, which claims priority to U.S. Provisional Patent ApplicationNo. 62/480,340 by John Wilson, et al., entitled “Dynamic Overriding ofControl Beam Monitoring Configuration,” filed Mar. 31, 2017, assigned tothe assignee hereof.

BACKGROUND

The following relates generally to wireless communication, and morespecifically to dynamic overriding of control beam monitoringconfiguration.

Wireless communications systems are widely deployed to provide varioustypes of communication content such as voice, video, packet data,messaging, broadcast, and so on. These systems may be capable ofsupporting communication with multiple users by sharing the availablesystem resources (e.g., time, frequency, and power). Examples of suchmultiple-access systems include code division multiple access (CDMA)systems, time division multiple access (TDMA) systems, frequencydivision multiple access (FDMA) systems, and orthogonal frequencydivision multiple access (OFDMA) systems, (e.g., a Long Term Evolution(LTE) system, or a New Radio (NR) system). A wireless multiple-accesscommunications system may include a number of base stations or accessnetwork nodes, each simultaneously supporting communication for multiplecommunication devices, which may be otherwise known as user equipment(UE).

Some wireless communications systems (e.g., NR systems) may operate infrequency ranges that are associated with beamformed transmissionsbetween wireless devices, for example, transmissions in millimeter wave(mmW) frequency ranges. These transmissions may be associated withincreased signal attenuation (e.g., path loss) as compared totransmissions in non-mmW frequency ranges. As a result, signalprocessing techniques such as beamforming may be used to combine energycoherently and overcome path losses in these systems. In some cases,control channel transmissions may be periodically transmitted using oneor more transmission beams, and in some cases control channeltransmissions may be transmitted on two or more different beamsaccording to a beam monitoring pattern. Conventional solutions forcontrolling a beam monitoring pattern are deficient.

SUMMARY

The described techniques relate to improved methods, systems, devices,or apparatuses that support overriding a beam monitoring pattern forcontrol channel transmissions based on channel conditions between a userequipment (UE) and a base station. In various examples, a base stationmay select a beam monitoring pattern for transmitting control channeltransmissions, which may include a pattern in which two or more beamsare used for control channel transmissions. An example pattern may be atime division multiplexing (TDM) pattern. In the event that a first beamof the beams used in the beam monitoring pattern meets certain metrics,the use of one or more additional beams according to the beam monitoringpattern may be overridden and transmissions may be continued using thefirst beam. In some cases, the metrics for continuing use of the firstbeam may include channel quality metrics, a number of consecutivesuccessful transmissions using the first beam, one or more othermetrics, or any combination thereof.

In some cases, a base station may send an indication to the UE that thefirst beam is to be continued to be used for control channeltransmissions. In other cases, a UE may send an indication to the basestation that the first beam is to be continued to be used for controlchannel transmissions. In still other cases, both the UE and the basestation may be configured with the same set of metrics, and mayautonomously continue to use the first beam for control channeltransmissions without transmissions of additional signaling. In somecases, the metrics may be evaluated, and re-evaluated, at predeterminedtime durations to determine if the configured beam monitoring patternshould be used or overridden.

A method of wireless communication is described. The method may includeidentifying a first beam monitoring pattern for transmitting controlchannel transmissions, the first beam monitoring pattern indicating thatthe control channel transmissions are to be transmitted using a firstsubset of transmission beams in a first subset of time periods and thatthe control channel transmissions are to be transmitted using a secondsubset of transmission beams in a second subset of time periods,transmitting the control channel transmissions during the first subsetof time periods using the first subset of transmission beams,determining, during the first subset of time periods, that thetransmitted first subset of transmission beams exceeds a reliabilitythreshold, and continuing transmissions using the first subset oftransmission beams for at least a portion of the second subset of timeperiods responsive to the determining.

An apparatus for wireless communication is described. The apparatus mayinclude means for identifying a first beam monitoring pattern fortransmitting control channel transmissions, the first beam monitoringpattern indicating that the control channel transmissions are to betransmitted using a first subset of transmission beams in a first subsetof time periods and that the control channel transmissions are to betransmitted using a second subset of transmission beams in a secondsubset of time periods, means for transmitting the control channeltransmissions during the first subset of time periods using the firstsubset of transmission beams, means for determining, during the firstsubset of time periods, that the transmitted first subset oftransmission beams exceeds a reliability threshold, and means forcontinuing transmissions using the first subset of transmission beamsfor at least a portion of the second subset of time periods responsiveto the determining.

Another apparatus for wireless communication is described. The apparatusmay include a processor, memory in electronic communication with theprocessor, and instructions stored in the memory. The instructions maybe operable to cause the processor to identify a first beam monitoringpattern for transmitting control channel transmissions, the first beammonitoring pattern indicating that the control channel transmissions areto be transmitted using a first subset of transmission beams in a firstsubset of time periods and that the control channel transmissions are tobe transmitted using a second subset of transmission beams in a secondsubset of time periods, transmit the control channel transmissionsduring the first subset of time periods using the first subset oftransmission beams, determine, during the first subset of time periods,that the transmitted first subset of transmission beams exceeds areliability threshold, and continue transmissions using the first subsetof transmission beams for at least a portion of the second subset oftime periods responsive to the determining.

A non-transitory computer readable medium for wireless communication isdescribed. The non-transitory computer-readable medium may includeinstructions operable to cause a processor to identify a first beammonitoring pattern for transmitting control channel transmissions, thefirst beam monitoring pattern indicating that the control channeltransmissions are to be transmitted using a first subset of transmissionbeams in a first subset of time periods and that the control channeltransmissions are to be transmitted using a second subset oftransmission beams in a second subset of time periods, transmit thecontrol channel transmissions during the first subset of time periodsusing the first subset of transmission beams, determine, during thefirst subset of time periods, that the transmitted first subset oftransmission beams exceeds a reliability threshold, and continuetransmissions using the first subset of transmission beams for at leasta portion of the second subset of time periods responsive to thedetermining.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for transmitting an indication to a UEthat indicates the first subset of transmission beams may be to be usedfor at least the portion of the second subset of time periods. In someexamples of the method, apparatus, and non-transitory computer-readablemedium described above, the indication indicates that the first subsetof transmission beams may be to be used for both the first subset andthe second subset of time periods for an identified time duration. Insome examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the identified time durationmay be indicated with the indication or may be preconfigured. In someexamples of the method, apparatus, and non-transitory computer-readablemedium described above, the indication may be transmitted in a mediaaccess control (MAC) control element (CE) or in downlink controlinformation (DCI) included with the control channel transmissions. Someexamples of the method, apparatus, and non-transitory computer-readablemedium described above may further include processes, features, means,or instructions for receiving an acknowledgment from the UE of theindication.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the first beam monitoringpattern maps the first subset of transmission beams to a first number ofslots in the first subset of time periods and the second subset oftransmission beams to a second number of slots in the second subset oftime periods. In some examples of the method, apparatus, andnon-transitory computer-readable medium described above, the determiningcomprises determining that a predetermined number of acknowledgments maybe received during the first subset of time periods, determining that asignal quality of the first subset of transmission beams exceeds asignal quality threshold, or any combination thereof. In some examplesof the method, apparatus, and non-transitory computer-readable mediumdescribed above, the determining comprises receiving an indication froma UE that the transmitted first subset of transmission beams exceeds thereliability threshold and acknowledging receipt of the indication. Insome examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the indication may be receivedin a MAC CE or in uplink control information (UCI) received from the UE.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for configuring a UE to determine,during the first subset of time periods, whether the transmitted firstsubset of transmission beams exceeds the reliability threshold, and tocontinue using the first subset of transmission beams for at least theportion of the second subset of time periods based on the determination,and wherein the continuing transmissions using the first subset oftransmission beams may be performed autonomously at the UE and at a basestation. In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the configuring comprisesconfiguring the UE with a same set of metrics as the base station fordetermining to continue using the first subset of transmission beams forat least the portion of the second subset of time periods.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the continuing transmissionsusing the first subset of transmission beams comprises continuingtransmissions using the first subset of transmission beams for anidentified time duration, and resuming the first beam monitoring patternafter an expiration of the identified time duration. In some examples ofthe method, apparatus, and non-transitory computer-readable mediumdescribed above, the continuing transmissions using the first subset oftransmission beams further comprises determining, prior to theexpiration of the identified time duration, that the transmitted firstsubset of transmission beams continue to exceed the reliabilitythreshold, and continuing transmissions using the first subset oftransmission beams for another of the identified time duration.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for determining, during the firstsubset of time periods, that the transmitted first subset oftransmission beams does not exceed a reliability threshold, identifyinga second beam monitoring pattern for transmitting control channeltransmissions, the second beam monitoring pattern indicating that thecontrol channel transmissions are to be transmitted using a third subsetof transmission beams in a third subset of time periods and that thecontrol channel transmissions are to be transmitted using a fourthsubset of transmission beams in a fourth subset of time periods, andoverriding the beam monitoring pattern with the second beam monitoringpattern.

A method of wireless communication is described. The method may includeidentifying a beam monitoring pattern for monitoring control channeltransmissions on transmission beams from a base station, the beammonitoring pattern indicating that the control channel transmissions areto be transmitted using a first subset of transmission beams in a firstsubset of time periods and that the control channel transmissions are tobe transmitted using a second subset of transmission beams in a secondsubset of time periods, receiving the control channel transmissionsduring the first subset of time periods over the first subset oftransmission beams, determining, during the first subset of timeperiods, that the transmitted first subset of transmission beams exceedsa reliability threshold, and continuing receiving the control channeltransmissions using the first subset of transmission beams for at leasta portion of the second subset of time periods responsive to thedetermining.

An apparatus for wireless communication is described. The apparatus mayinclude means for identifying a beam monitoring pattern for monitoringcontrol channel transmissions on transmission beams from a base station,the beam monitoring pattern indicating that the control channeltransmissions are to be transmitted using a first subset of transmissionbeams in a first subset of time periods and that the control channeltransmissions are to be transmitted using a second subset oftransmission beams in a second subset of time periods, means forreceiving the control channel transmissions during the first subset oftime periods over the first subset of transmission beams, means fordetermining, during the first subset of time periods, that thetransmitted first subset of transmission beams exceeds a reliabilitythreshold, and means for continuing receiving the control channeltransmissions using the first subset of transmission beams for at leasta portion of the second subset of time periods responsive to thedetermining.

Another apparatus for wireless communication is described. The apparatusmay include a processor, memory in electronic communication with theprocessor, and instructions stored in the memory. The instructions maybe operable to cause the processor to identify a beam monitoring patternfor monitoring control channel transmissions on transmission beams froma base station, the beam monitoring pattern indicating that the controlchannel transmissions are to be transmitted using a first subset oftransmission beams in a first subset of time periods and that thecontrol channel transmissions are to be transmitted using a secondsubset of transmission beams in a second subset of time periods, receivethe control channel transmissions during the first subset of timeperiods over the first subset of transmission beams, determine, duringthe first subset of time periods, that the transmitted first subset oftransmission beams exceeds a reliability threshold, and continuereceiving the control channel transmissions using the first subset oftransmission beams for at least a portion of the second subset of timeperiods responsive to the determining.

A non-transitory computer readable medium for wireless communication isdescribed. The non-transitory computer-readable medium may includeinstructions operable to cause a processor to identify a beam monitoringpattern for monitoring control channel transmissions on transmissionbeams from a base station, the beam monitoring pattern indicating thatthe control channel transmissions are to be transmitted using a firstsubset of transmission beams in a first subset of time periods and thatthe control channel transmissions are to be transmitted using a secondsubset of transmission beams in a second subset of time periods, receivethe control channel transmissions during the first subset of timeperiods over the first subset of transmission beams, determine, duringthe first subset of time periods, that the transmitted first subset oftransmission beams exceeds a reliability threshold, and continuereceiving the control channel transmissions using the first subset oftransmission beams for at least a portion of the second subset of timeperiods responsive to the determining.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the first beam monitoringpattern maps the first subset of transmission beams to a first number ofslots in the first subset of time periods and the second subset oftransmission beams to a second number of slots in the second subset oftime periods. In some examples of the method, apparatus, andnon-transitory computer-readable medium described above, the determiningcomprises receiving an indication from the base station that indicatesthe first subset of transmission beams may be to be used for at leastthe portion of the second subset of time periods. In some examples ofthe method, apparatus, and non-transitory computer-readable mediumdescribed above, the indication indicates that the first subset oftransmission beams may be to be used for both the first subset and thesecond subset of time periods for an identified time duration.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the identified time durationmay be indicated with the indication or may be preconfigured. In someexamples of the method, apparatus, and non-transitory computer-readablemedium described above, the indication may be received in a MAC CE or inDCI included with the control channel transmissions. Some examples ofthe method, apparatus, and non-transitory computer-readable mediumdescribed above may further include processes, features, means, orinstructions for transmitting an acknowledgment of the indication to thebase station.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the determining comprisesdetermining that a predetermined number of acknowledgments may bereceived during the first subset of time periods, determining that asignal quality of the first subset of transmission beams exceeds asignal quality threshold, or any combination thereof. In some examplesof the method, apparatus, and non-transitory computer-readable mediumdescribed above, the determining comprises transmitting an indication tothe base station that the transmitted first subset of transmission beamsexceeds the reliability threshold, and receiving an acknowledgment ofreceipt of the indication, and wherein the continuing receiving thecontrol channel transmissions using the first subset of transmissionbeams may be performed responsive to receiving the acknowledgment. Insome examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the indication may betransmitted in a MAC CE or in UCI.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for receiving, from the base station,configuration information to determine, during the first subset of timeperiods, whether the transmitted first subset of transmission beamsexceeds the reliability threshold, and to continue using the firstsubset of transmission beams for at least the portion of the secondsubset of time periods based on the determination, and wherein thecontinuing receiving the control channel transmissions using the firstsubset of transmission beams may be performed autonomously at the basestation and at a UE.

In some examples of the method, apparatus, and non-transitorycomputer-readable medium described above, the continuing receiving thecontrol channel transmissions using the first subset of transmissionbeams comprises continuing receiving the control channel transmissionsusing the first subset of transmission beams for an identified timeduration, and resuming the first beam monitoring pattern after anexpiration of the identified time duration. In some examples of themethod, apparatus, and non-transitory computer-readable medium describedabove, the continuing receiving the control channel transmissions usingthe first subset of transmission beams further comprises determining,prior to the expiration of the identified time duration, that thetransmitted first subset of transmission beams continue to exceed thereliability threshold, and continuing receiving the control channeltransmissions using the first subset of transmission beams for anotherof the identified time duration.

Some examples of the method, apparatus, and non-transitorycomputer-readable medium described above may further include processes,features, means, or instructions for determining, during the firstsubset of time periods, that the transmitted first subset oftransmission beams does not exceed a reliability threshold, identifyinga second beam monitoring pattern for receiving control channeltransmissions, the second beam monitoring pattern indicating that thecontrol channel transmissions are to be transmitted using a third subsetof transmission beams in a third subset of time periods and that thecontrol channel transmissions are to be transmitted using a fourthsubset of transmission beams in a fourth subset of time periods, andoverriding the beam monitoring pattern with the second beam monitoringpattern.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates an example of a system for wireless communicationthat supports dynamic overriding of control beam monitoringconfiguration in accordance with aspects of the present disclosure.

FIG. 2 illustrates an example of a wireless communication system thatsupports dynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure.

FIG. 3 illustrates an example of beam monitoring patterns that supportdynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure.

FIG. 4 illustrates an example of a process flow that supports dynamicoverriding of control beam monitoring configuration in accordance withaspects of the present disclosure.

FIGS. 5 through 7 show block diagrams of a device that supports dynamicoverriding of control beam monitoring configuration in accordance withaspects of the present disclosure.

FIG. 8 illustrates a block diagram of a system including a base stationthat supports dynamic overriding of control beam monitoringconfiguration in accordance with aspects of the present disclosure.

FIGS. 9 through 11 show block diagrams of a device that supports dynamicoverriding of control beam monitoring configuration in accordance withaspects of the present disclosure.

FIG. 12 illustrates a block diagram of a system including a UE thatsupports dynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure.

FIGS. 13 through 16 illustrate methods for dynamic overriding of controlbeam monitoring configuration in accordance with aspects of the presentdisclosure.

DETAILED DESCRIPTION

The described techniques relate to improved methods, systems, devices,or apparatuses that support overriding a beam monitoring pattern forcontrol channel transmissions based on channel conditions between a userequipment (UE) and a base station. In various examples, a base stationmay select a beam monitoring pattern for transmitting control channeltransmissions, which may include a pattern in which two or more beamsare used for control channel transmissions. An example pattern may be atime division multiplexing (TDM) pattern. In the event that a first beamof the beams used in the beam monitoring pattern meets certain metrics,the use of one or more additional beams according to the beam monitoringpattern may be overridden and transmissions may be continued using thefirst beam. In some cases, the metrics for continuing use of the firstbeam may include channel quality metrics, a number of consecutivesuccessful transmissions using the first beam, one or more othermetrics, or any combination thereof.

Some wireless communication systems may operate in frequency ranges thatsupport beamformed transmissions between wireless devices.Communications in mmW frequency bands may experience increased signalattenuation (e.g., path loss). As a result, signal processing techniquessuch as beamforming may be used to combine energy coherently andovercome the path losses in these systems. In such systems, wirelessdevices, such as a UE and base station, may be able to communicate overone or more active beams, which may correspond to a transmit beam usedat the transmitting device and a receive beam at a receiving device(e.g., a beam pair). In some cases, control channel transmission may betransmitted periodically using one or more transmission beams, and insome cases control channel transmissions may be transmitted on two ormore different beams according to a beam monitoring pattern. Such beammonitoring patterns may use combinations of two or more transmissionbeams to transmit control channel information, in order to provide thatcontrol channel transmissions may be received at a UE on one of thebeams in the event that another of the beams is obstructed or otherwisenot successfully received.

In some cases, a beam monitoring pattern may be configured for controlchannel (e.g., physical downlink control channel (PDCCH)) transmissionsbetween a base station and a UE, and disclosed techniques may supportoverriding the beam monitoring pattern based on channel conditions. Insome examples, a first beam monitoring pattern may be configured fortransmitting control channel transmissions, in which two or more beamsare used for control channel transmissions (e.g., according to a TDMpattern). In the event that a first beam of the beams used in the beammonitoring pattern meets certain metrics, the use of one or moreadditional beams according to the beam monitoring pattern may beoverridden and transmissions continued using the first beam. In somecases, the metrics for continuing use of the first beam may includechannel quality metrics, a number of consecutive successfultransmissions using the first beam, one or more other metrics, or anycombination thereof.

In some cases, a base station may send an indication to the UE that thefirst beam is to be continued to be used for control channeltransmissions. In other cases, a UE may send an indication to the basestation that the first beam is to be continued to be used for controlchannel transmissions. In still other cases, both the UE and the basestation may be configured with the same set of metrics, and mayautonomously continue to use the first beam for control channeltransmissions without transmissions of additional signaling. In somecases, the metrics may be evaluated, and re-evaluated, at predeterminedtime durations to determine if the configured beam monitoring patternshould be used, or be overridden.

Aspects of the disclosure are initially described in the context of awireless communications system. Aspects of the disclosure are furtherillustrated by and described with reference to apparatus diagrams,system diagrams, and flowcharts that relate to dynamic overriding ofcontrol beam monitoring configuration.

FIG. 1 illustrates an example of a wireless communications system 100 inaccordance with various aspects of the present disclosure. The wirelesscommunications system 100 includes base stations 105, UEs 115, and acore network 130. In some examples, the wireless communications system100 may be an LTE, LTE-Advanced (LTE-A) network, or an NR network. Insome cases, the wireless communications system 100 may support enhancedbroadband communications, ultra-reliable (i.e., mission critical)communications, low latency communications, and communications withlow-cost and low-complexity devices. The wireless communications system100 may support dynamic overriding of control beam monitoringconfigurations based on, for example, a reliability of a primary beamused for control channel transmissions.

The base stations 105 may wirelessly communicate with the UEs 115 viaone or more base station antennas. Each base station 105 may providecommunication coverage for a respective geographic coverage area 110.Communication links 125 shown in the wireless communications system 100may include uplink transmissions from a UE 115 to a base station 105, ordownlink transmissions, from a base station 105 to a UE 115. Controlinformation and data may be multiplexed on an uplink or downlink channelaccording to various techniques. For example, control information anddata may be multiplexed on a downlink channel using time divisionmultiplexing (TDM) techniques, frequency division multiplexing (FDM)techniques, or hybrid TDM-FDM techniques. In some examples, the controlinformation transmitted during a transmission time interval (TTI) of adownlink channel may be distributed between different control regions ina cascaded manner (e.g., between a common control region and one or moreUE-specific control regions).

The UEs 115 may be dispersed throughout the wireless communicationssystem 100, and each UE 115 may be stationary or mobile. A UE 115 mayalso be referred to as a mobile station, a subscriber station, a mobileunit, a subscriber unit, a wireless unit, a remote unit, a mobiledevice, a wireless device, a wireless communications device, a remotedevice, a mobile subscriber station, an access terminal, a mobileterminal, a wireless terminal, a remote terminal, a handset, a useragent, a mobile client, a client, or some other suitable terminology. AUE 115 may also be a cellular phone, a personal digital assistant (PDA),a wireless modem, a wireless communication device, a handheld device, atablet computer, a laptop computer, a cordless phone, a personalelectronic device, a handheld device, a personal computer, a wirelesslocal loop (WLL) station, an Internet of things (IoT) device, anInternet of Everything (IoE) device, a machine type communication (MTC)device, an appliance, an automobile, or the like.

The core network 130 may provide user authentication, accessauthorization, tracking, Internet Protocol (IP) connectivity, and otheraccess, routing, or mobility functions. At least some of the networkdevices, such as a base station 105 may include subcomponents such as anaccess network entity, which may be an example of an access nodecontroller (ANC). Each access network entity may communicate with anumber of the UEs 115 through a number of other access networktransmission entities, each of which may be an example of a smart radiohead, or a transmission/reception point (TRP). In some configurations,various functions of each access network entity or base station 105 maybe distributed across various network devices (e.g., radio heads andaccess network controllers) or consolidated into a single network device(e.g., a base station 105).

The wireless communications system 100 may operate in an ultra-highfrequency (UHF) frequency region using frequency bands from 700 MHz to2600 MHz (2.6 gigahertz (GHz)), although in some cases wireless localarea networks (WLANs) may use frequencies as high as 4 GHz. This regionmay also be known as the decimeter band, since the wavelengths rangefrom approximately one decimeter to one meter in length. UHF waves maypropagate mainly by line of sight, and may be blocked by buildings andenvironmental features. However, the waves may penetrate wallssufficiently to provide service to the UEs 115 located indoors.Transmission of UHF waves is characterized by smaller antennas andshorter range (e.g., less than 100 km) compared to transmission usingthe smaller frequencies (and longer waves) of the high frequency (HF) orvery high frequency (VHF) portion of the spectrum. In some cases, thewireless communications system 100 may also utilize extremely highfrequency (EHF) portions of the spectrum (e.g., from 30 GHz to 300 GHz).This region may also be known as the millimeter band, since thewavelengths range from approximately one millimeter to one centimeter inlength. Thus, EHF antennas may be even smaller and more closely spacedthan UHF antennas. In some cases, this may facilitate use of antennaarrays within a UE 115 (e.g., for directional beamforming). However, EHFtransmissions may be subject to even greater atmospheric attenuation andshorter range than UHF transmissions.

The wireless communications system 100 may thus support mmWcommunications between the UEs 115 and the base stations 105. Devicesoperating in mmW or EHF bands may have multiple antennas to allowbeamforming. That is, a base station 105 may use multiple antennas orantenna arrays to conduct beamforming operations for directionalcommunications with a UE 115. Beamforming (which may also be referred toas spatial filtering or directional transmission) is a signal processingtechnique that may be used at a transmitter (e.g. a base station 105) toshape and/or steer an overall antenna beam in the direction of a targetreceiver (e.g. a UE 115). This may be achieved by combining elements inan antenna array in such a way that signals transmitted at particularangles experience constructive interference while signals transmitted atdifferent angles experience destructive interference.

Multiple-input multiple-output (MIMO) wireless systems use atransmission scheme between a transmitter (e.g., a base station 105) anda receiver (e.g., a UE 115), where both transmitter and receiver areequipped with multiple antennas. Some portions of the wirelesscommunications system 100 may use beamforming. For example, the basestation 105 may have an antenna array with a number of rows and columnsof antenna ports that the base station 105 may use for beamforming inits communication with a UE 115. Signals may be transmitted multipletimes in different directions (e.g., each transmission may be beamformeddifferently). A mmW receiver (e.g., a UE 115) may try multiple beams(e.g., antenna subarrays) while receiving the synchronization signals.

In some cases, the antennas of a base station 105 or a UE 115 may belocated within one or more antenna arrays (e.g., panels), which maysupport beamforming or MIMO operation. One or more base station antennasor antenna arrays may be collocated at an antenna assembly, such as anantenna tower. In some cases, antennas or antenna arrays associated witha base station 105 may be located in diverse geographic locations. Abase station 105 may use multiple antennas or antenna arrays to conductbeamforming operations for directional communications with a UE 115.

In some cases, the wireless communications system 100 may be apacket-based network that operate according to a layered protocol stack.In the user plane, communications at the bearer or Packet DataConvergence Protocol (PDCP) layer may be IP-based. A radio link control(RLC) layer may in some cases perform packet segmentation and reassemblyto communicate over logical channels. A MAC layer may perform priorityhandling and multiplexing of logical channels into transport channels.The MAC layer may also use hybrid automatic repeat request (HARD) toprovide retransmission at the MAC layer to improve link efficiency. Inthe control plane, the RRC protocol layer may provide establishment,configuration, and maintenance of an RRC connection between a UE 115 anda network device, or the core network 130 supporting radio bearers foruser plane data. At the physical (PHY) layer, transport channels may bemapped to physical channels.

Thus, in the wireless communications system 100, the UEs 115 and thebase stations 105 communicate over one or more active beams. In somecases, control channel transmissions may be periodically transmittedaccording to a beam monitoring pattern. For example, a radio subframemay include two slots, and a PDCCH transmission may be transmitted to aUE 115 once per slot. The PDCCH transmission may be transmitted, forexample, using a first transmission beam for a predetermined number ofslots, and then transmitted using a different second transmission beamfor a second predetermined number of slots. In some cases, the controlchannel transmission using the second transmission beam may betransmitted at a higher power and/or aggregation level due to the secondtransmission beam being a weaker beam at the UE 115 than the firsttransmission beam. The use of different transmission beams in such amonitoring pattern may provide for the control channel transmissions tobe able to be received at the UE 115 on either the first transmissionbeam or the second transmission beam in the event that one of the beamsis obstructed or otherwise not successfully received. Various disclosedtechniques may support overriding the beam monitoring pattern based onchannel conditions.

FIG. 2 illustrates an example of a wireless communications system 200that supports dynamic overriding of control beam monitoringconfiguration in accordance with various aspects of the presentdisclosure. The wireless communications system 200 includes a basestation 105-a and a UE 115-a, each of which may be an example of thecorresponding devices as described with reference to FIG. 1.

The wireless communications system 200 may operate in frequency rangesthat are associated with beamformed transmissions between the basestation 105-a and the UE 115-a. For example, the wireless communicationssystem 200 may operate using mmW frequency ranges. As a result, signalprocessing techniques, such as beamforming, may be used to combineenergy coherently and overcome path losses. By way of example, the basestation 105-a may contain multiple antennas. In some cases, each antennamay transmit (or receive) a phase-shifted version of a signal such thatthe phase-shifted versions constructively interfere in certain regionsand destructively interfere in others. Weights may be applied to thevarious phase-shifted versions in order to, for example, steer thetransmissions in a desired direction. Such techniques (or similartechniques) may serve to increase the coverage area 110-a of the basestation 105-a or otherwise benefit the wireless communications system200.

Downlink beams 205-a, 205-b, 205-c, and 205-d represent examples ofbeams over which data (e.g., control information, shared channel data,or combinations thereof) may be transmitted. Accordingly, each downlinkbeam 205 may be directed from the base station 105-a toward a differentregion of the coverage area 110-a and in some cases, two or more beamsmay overlap. The downlink beams 205-a and 205-b may be transmittedsimultaneously or at different times. In either case, a UE 115-a may becapable of receiving the information in one or more of the downlinkbeams 205. Similarly, the UE 115-a may transmit two or more uplink beams210 (e.g., uplink beams 210-a, 210-b).

As indicated above, in some cases, control channel transmissions (e.g.,PDCCH transmissions) might use more than one beam for robustness tochannel blocking. In such cases, the base station 105-a may transmitcontrol channel transmissions, and the UE 115-a may be configured tomonitor for control channel transmissions according to a beam monitoringpattern across slots. For example, a beam monitoring pattern may includeTDM monitoring of PDCCH beams across slots, in which certain slots mayuse a first subset of transmission beams (e.g., a single firsttransmission beam or combination of two or more beams) and other slotsmay use a second subset of transmission beams (e.g., a single secondtransmission beam or a combination of two or more beams). A beam patternmay be a function that maps one or more beams to a transmission timeinterval (e.g., slot, minislot, control resource set (CORESET),subframe, frame, or the like). The CORESET may include, for example, oneor more resource blocks in the frequency domain and one or more OFDMsymbol periods in the time domain. An example beam pattern may includetransmitting a first beam for a first transmission time interval (e.g.,a first number of slots (e.g., 9 slots)) and then transmitting a secondbeam for a second transmission time interval (e.g., a second number ofslots (e.g., 10 slots). The beam pattern may include a different or thesame number of slots for the first and second beams, and any number ofslots may be used. The beam pattern may repeated. A first beam patternmay be a default function and a second beam pattern may be an overridingfunction.

In some cases, the first subset of transmission beams may use atransmission beam that has a better channel quality than that of thesecond subset of transmission beams. In such cases, whenever the weakersecond subset of transmission beams are used, the control channeltransmission may be sent at a higher aggregation level, or at a higherpower, to close the link and provide a higher likelihood of successfulreception at the UE 115-a. The benefit of using a weaker link comes intoplay when there is degradation on the stronger link, where the UE 115-amay start to fail to receive control channel transmissions on thestronger link but successfully receive a transmission over the weakerlink.

The present disclosure provides techniques to enhance network efficiencywhen the strong link has been observed to be a reliable link. Forexample, if the first subset of transmission beams have resulted insuccessful reception of transmissions for a certain number ofconsecutive slots, it is unlikely that the link has degradedsignificantly in one or more subsequent slots. In such cases,transmissions using higher power and/or aggregation levels on the secondsubset of beams may be less efficient than simply continuingtransmissions using the first subset of transmission beams. In variousaspects of the present disclosure, techniques are provided that may moreefficiently utilize the base station 105-a resources while alsoproviding robustness in control channel transmissions.

In some cases, the base station 105-a may dynamically indicate to the UE115-a (e.g., via MAC CE or DCI transmissions) that an overridingmonitoring pattern is to be used. In some examples, the overridingmonitoring pattern may be used for a certain time duration, such as forthe next N slots (e.g., where N is 40), before switching back to thefirst monitoring pattern. In some cases, prior to the expiration of thetime duration, the first subset of beams may be re-evaluated and theoverriding pattern may be continued for another of the time durations.In some cases, the second monitoring pattern may simply be to continuecontrol channel transmissions using a first transmission beam that hasbeen identified as exceeding a reliability threshold. In some cases,after indicating to the UE 115-a to override the first monitoringpattern, the UE 115-a may acknowledge receipt of the indication and boththe UE 115-a and the base station 105-a may use the second monitoringpattern.

In other cases, the UE 115-a may dynamically indicate to the basestation 105-a that the second monitoring pattern is to be used when theUE 115-a observes the first subset of transmission beams have exceededthe reliability threshold. In some cases, similarly as indicated above,the reliability threshold may be a number of consecutive control channeltransmissions that are successfully received at the UE 115-a, referencesignal (RS) or synchronization signal (SS) (e.g., PDCCH RS/CSI-RS/SS)signal to noise ratios (or signal to noise plus interference ratios)that exceed a threshold value, or combinations thereof. In still furthercases, both the base station 105-a and the UE 115-a may implicitlydetermine when to use the overriding monitoring pattern, and may bothswitch to an overriding pattern (e.g., at a time N₁ for N slots), beforeswitching back to the pre-configured pattern (or re-evaluating whetherto continue the overriding pattern).

In some examples, the reliability threshold may be defined in such a waythat the control channel should not fail in most instances when thereliability threshold is met (e.g., the reliability threshold is notexceeded). For example, the communications are robust when a maincontrol link does not fail. In some cases, having two beams configuredin every slot for exchanging control information may be very robustconsidering that if one beam fails, the other beam may be able to conveythe control information. However, using two beams at all times may wasteresources. The monitoring patterns described herein may be used toincrease the robustness of the transmissions while using less resourcesthan the example using two beams.

As discussed above, different monitoring patterns may be used formonitoring transmission beams for control channel transmissions. FIG. 3illustrates an example of beam monitoring patterns 300 that supportdynamic overriding of control beam monitoring configurations inaccordance with various aspects of the present disclosure. In someexamples, the beam monitoring patterns 300 may be used to implementaspects of the wireless communication system 100. The beam monitoringpatterns 300 may, for example, be used by a UE 115 and a base station105 as described with reference to FIGS. 1 and 2. Aspects of the beammonitoring patterns 300 have been simplified for the sake ofexplanation. Accordingly, the arrangement and periodicity of the variousresources described below may vary from what is depicted in FIG. 3.

The beam monitoring patterns 300 may provide, for example, PDCCHmonitoring patterns that are defined as a mapping from symbols or slotsto a subset of PDCCH beams. In some examples, a base station 105-b maytransmit control channel transmissions on one or more transmissionbeams, including a first transmission beam 315, a second transmissionbeam 320, and a third transmission beam 325. Additionally, there may betwo types of PDCCH beam monitoring patterns, including a set ofconfigured patterns 305 and a set of overriding patterns 310. The set ofoverriding patterns 310 may be treated as fall back patterns whenmeasurements indicate the set of overriding patterns 310 would improvefunctionality, such as reliability. In some examples, using the set ofoverriding patterns 310 may be performed in a fall back mode ofoperation.

In the depicted example, the configured patterns 305 may include anumber of different patterns that may be selected by the base station105-b. For example, a first beam monitoring pattern 305-a may providethat control channel transmissions are transmitted using the firsttransmission beam 315 for a first N−1 slots, followed by a controlchannel transmission transmitted using the second transmission beam 320in slot N, and the pattern may repeat for a subsequent N slots. In anexample, the first beam monitoring pattern 305-a may map a first subsetof transmission beams 315, 320, 325, and 330 (e.g., beam 315) to a firstnumber of slots (e.g., the first N−1 slots) in a first subset of timeperiods (e.g., N−1 of the N total slots) and a second subset oftransmission beams 315, 320, 325, and 330 (e.g., beam 320) to a secondnumber of slots (e.g., slot N) in a second subset of time periods (e.g.,Nth slot). The time periods may correspond to the N time periodsallocated to the N slots.

A second beam monitoring pattern 305-b may provide that control channeltransmissions are transmitted using the first transmission beam 315 ineven-numbered slots, and control channel transmissions are transmittedusing the second transmission beam 320 in odd-numbered slots. In anexample, the second beam monitoring pattern 305-b may map a first subsetof transmission beams 315, 320, 325, and 330 (e.g., beam 315) to a firstnumber of slots in a first subset of time periods (e.g., theeven-numbered slots of the N slots) and the second subset oftransmission beams 315, 320, 325, and 330 (e.g., beam 320) to a secondnumber of slots in a second subset of time periods (e.g., theodd-numbered slots of the N slots). In some cases, beam monitoringpatterns may provide that control channel transmissions are transmittedusing more than one beam in a slot, such as in a third beam monitoringpattern 305-c in which control channel transmissions are transmittedusing the first transmission beam 315 and the third transmission beam325 in a first slot, followed by transmissions using the firsttransmission beam 315 until the pattern repeats. Numerous otherdifferent beam monitoring patterns may be configured, and the examplesin FIG. 3 are provided for purposes of discussion and illustration onlyand are not limiting to the disclosure.

In the event that a beam or subset of beams are determined to meetreliability thresholds, an overriding pattern 310 may be selected forcontrol channel transmissions for a certain time duration, in someexamples. In the example of FIG. 3, a first overriding pattern 310-a mayinclude control channel transmissions using only the first beam 315.Similarly, a second overriding pattern 310-b may include control channeltransmissions using only the second beam 320. In some implementations,there may not be an explicit set of configured overriding patterns, butsimply an override rule to stay on a first beam or a subset of beams fora time duration (e.g., the next N slots) when the first beam or subsetof beams meets the reliability threshold. In cases where an overridingpattern is used, the set of overriding patterns 310 may include numerousdifferent overriding patterns, with the examples of FIG. 3 provided forpurposes of illustration and discussion only. In some cases, the basestation 105-b may configure one or more UEs with the set of configuredpatterns 305 and the set of overriding patterns 310, and may signal tothe UE 115-a which pattern of the different sets of patterns are to beused for control channel monitoring. In some cases, the sets of patternsand/or particular patterns to be used for control channel transmissionsto a UE 115-a may be semi-statically configured and signaled to the UE115-a via, for example, RRC signaling.

For example, a base station 105-b may use a first beam monitoringpattern 305-a to transmit a first subset of transmission beams 315, 320,325, and 330 (e.g., beam 315). The base station 105-b may determinethat, in a first subset of time periods (e.g., first N−1 slots), thetransmitted first subset of transmission beams (e.g., beam 315) does notexceed the reliability threshold. The base station 105-b may identify asecond beam monitoring pattern 310 for transmitting control channeltransmissions. The second beam monitoring pattern 310 may indicate thatthe control channel transmissions are to be transmitted using a thirdsubset of transmission beams 315, 320, 325, and 330 (e.g., beam 325) ina third subset of time periods (e.g., the first N−1 slots of a secondset of N slots that begins after the Nth slot of the first set of Nslots) and that the control channel transmissions are to be transmittedusing a fourth subset of transmission beams 315, 320, 325, and 330(e.g., beam 330) in a fourth subset of time periods (e.g., the Nth slotin the second set of N slots). The base station 105-b may determine tooverride the first beam monitoring pattern 305-a and instead utilize thesecond beam monitoring pattern 310, for example, based on determiningthat the transmitted first subset of transmission beams (e.g., beam 315)does not exceed the reliability threshold. In some cases, the UE 115-amay make a similar determination that the transmitted first subset oftransmission beams (e.g., beam 315) does not exceed the reliabilitythreshold and instruct the base station 105-b override the first beammonitoring pattern 305-a and instead utilize the second beam monitoringpattern 310 for transmissions.

In some cases, the determination to switch from a configured monitoringpattern 305 to an overriding monitoring pattern 310 may be made at thebase station 105-b and dynamically signaled to the UE 115-a (e.g., via aMAC CE or in DCI). As discussed above, in some cases an overriding beampattern may be configured, or there may be a rule to stay on a currentbeam or subset of beams for a time duration (e.g., for the next N slots)when the current beam or subset of beams meets the reliabilitythreshold. For example, the base station 105-b may configure the firstmonitoring pattern 305-a where N is 40, and may begin control channeltransmissions according to the configured pattern. During thetransmissions, the base station 105-b may observe that the controlchannel transmissions on the first transmission beam 315 aresuccessfully received at the UE 115-a (e.g., ACK is received from the UE115-a) for 35 consecutive slots. Additionally or alternatively, the basestation 105-b may identify that measurements associated with the firsttransmission beam 315 (e.g., a certain number of channel qualityinformation (CQI) reports from the UE 115-a) show the channel quality ofthe first beam above a threshold value for a certain time period.

When the reliability of the first transmission beam 315 meets or exceedssuch a reliability threshold, the base station 105-b may indicate to theUE 115-a that the first overriding pattern 310-a (which may be to simplycontinue with a current transmission beam) is to be used for the next Nslots. The UE, responsive to the received indication from the basestation 105-a, may switch to the first overriding pattern 310-a andcontinue monitoring the first transmission beam 315 until slot 75, andthen may switch back to the first beam monitoring pattern 305-a at slot76. The base station 105-b, at slot 76, may then decide that the firstoverriding pattern 310-a is to be used again, if the over-ride actioncontinues; otherwise both the base station 105-b and the UE 115-a fallback to the first monitoring pattern 305-a. In another example, thefirst overriding pattern 310-a is considered a fall back pattern andboth the base station 105-b and the UE 115-a fall back to the firstoverriding pattern 310-a when operating in a fall back mode. In someexamples, the UE 115-a may indicate to the base station 105-b to move tothe first overriding pattern 310-a, and the base station 105-b may makea final decision based on UE feedback.

In some cases, the UE 115-a may observe that control channeltransmissions using the first transmission beam 315 meet the reliabilitythreshold for the defined number of slots (e.g., based on a number ofsuccessful receptions, channel measurements, or combinations thereof),and may indicate to the base station 105-b to use the first overridingpattern 310-a for the next N slots. In such cases, the base station105-b may acknowledge the switch, and apply the overriding monitoringpattern for the next N slots, before switching back, with re-evaluationprior to the expiration of the override time duration.

In some cases, both the base station 105-b and a UE 115-a mayautonomously switch from a configured monitoring pattern. In such cases,the UE 115-a may observe that transmissions using the first transmissionbeam 315 meet a reliability threshold for a set number of time slots,and the base station 105-b may make a similar determination based on asame set of metrics. Such metrics may be predefined threshold metricsthat may be specified or configured by the base station 105-b. As thereliability threshold metric(s) have been met both at the base station105-b and the UE 115-a (e.g., at slot 36), both the base station 105-band the UE 115-a may override their monitoring patterns with anoverriding pattern (e.g., the first overriding pattern 310-a) for thenext N slots, and a re-evaluation may be performed again after the setnumber of time slots. Such a scheme thus has reduced signaling overheadand gives robustness for control channel transmissions while alsoallowing more efficient use of resources when a transmission beam usedfor control channel transmissions has good reliability.

FIG. 4 illustrates an example of a process flow 400 that supportsdynamic overriding of control beam monitoring configuration inaccordance with various aspects of the present disclosure. The processflow 400 includes a UE 115-b and a base station 105-c, each of which maybe an example of the corresponding devices described above withreference to FIGS. 1 through 3.

At 405, the UE 115-b and the base station 105-c may establishcommunications using one or more active beams. At 410, the base station105-c may identify beam monitoring patterns to be used for monitoringcontrol channel transmissions (e.g., via MAC CE or DCI transmissions).In some cases, the monitoring patterns may include one or moreconfigured monitoring patterns and one or more overriding patterns. Insome cases, a configured monitoring pattern and an overriding patternmay be selected from a set of available patterns and configured forcontrol channel transmissions. The base station 105-c may transmitconfiguration information 415 to the UE 115-b. The base station 105-cmay transmit transmission beams with control channel transmissions 420according to the configured pattern.

The UE 115-b, at block 425, may determine feedback (e.g., ACK/NACKfeedback) for control channel transmissions 420 transmitted on thetransmission beams. Such feedback may indicate, for example, that thecontrol channel transmission was successfully received at the UE 115-b.In some cases, the UE 115-b may perform measurements on received beams,as indicated at block 430. Such measurements may include, for example,CQI measurements that may be periodically performed (e.g., every 5 ms).The UE 115-b may transmit the ACK/NACK feedback 435 and one or moremeasurement reports 440 to the base station 105-c.

At block 445, the UE 115-b may determine whether to override theconfigured monitoring pattern. Such a determination may be madeaccording to the techniques as discussed above, and may be based on areliability of transmissions on a first subset of transmission beams,for example. Likewise, at block 450, the base station 105-c maydetermine whether to override the configured monitoring pattern. Such adetermination may likewise be based on a reliability of transmissions ona first subset of transmission beams, for example. As discussed above,in some examples, such a determination may be an implicit determinationmade at one or both of the UE 115-b or the base station 105-c andseparate signaling may not be necessary.

In examples where an indication of overriding is provided, the basestation 105-c or the UE 115-b, or both, may transmit the overrideindication 455, and in some cases may receive an acknowledgment of theoverride. In some cases, the override indications 455 may not betransmitted, and both the UE 115-b and the base station 105-c mayautonomously switch to the overriding pattern or continue with a currenttransmission beam or subset of transmission beams. The base station105-c may transmit transmission beams 460 with control channeltransmissions according to the overriding pattern, which may be tocontinue transmitting using a transmission beam that was determined tomeet a reliability threshold. At block 465 and block 470, the UE 115-band the base station 105-c may reevaluate channel reliability anddetermine whether to continue or discontinue overriding, in some cases.

In some cases, following a set time duration (e.g., a set number ofslots), the base station 105-c and the UE 115-b may fall back to theconfigured monitoring pattern. In some cases, the base station 105-c andthe UE 115-b may fall back to the configured monitoring pattern in theevent that any transmissions using the overriding pattern are notsuccessfully received.

FIG. 5 shows a block diagram 500 of a wireless device 505 that supportsdynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure. The wireless device505 may be an example of aspects of a base station 105 as describedherein. The wireless device 505 may include a receiver 510, a basestation beam manager 515, and a transmitter 520. The wireless device 505may also include a processor. Each of these components may be incommunication with one another (e.g., via one or more buses).

The receiver 510 may receive information such as packets, user data, orcontrol information associated with various information channels (e.g.,control channels, data channels, and information related to dynamicoverriding of control beam monitoring configuration, etc.). Informationmay be passed on to other components of the wireless device 505. Thereceiver 510 may be an example of aspects of the transceiver 835described with reference to FIG. 8. The receiver 510 may utilize asingle antenna or a set of antennas.

The base station beam manager 515 may be an example of aspects of thebase station beam manager 815 described with reference to FIG. 8.

The base station beam manager 515 and/or at least some of its varioussub-components may be implemented in hardware, software executed by aprocessor, firmware, or any combination thereof. If implemented insoftware executed by a processor, the functions of the base station beammanager 515 and/or at least some of its various sub-components may beexecuted by a general-purpose processor, a digital signal processor(DSP), an application-specific integrated circuit (ASIC), afield-programmable gate array (FPGA) or other programmable logic device,discrete gate or transistor logic, discrete hardware components, or anycombination thereof designed to perform the functions described in thepresent disclosure. The base station beam manager 515 and/or at leastsome of its various sub-components may be physically located at variouspositions, including being distributed such that portions of functionsare implemented at different physical locations by one or more physicaldevices. In some examples, the base station beam manager 515 and/or atleast some of its various sub-components may be a separate and distinctcomponent in accordance with various aspects of the present disclosure.In other examples, the base station beam manager 515 and/or at leastsome of its various sub-components may be combined with one or moreother hardware components, including but not limited to an I/Ocomponent, a transceiver, a network server, another computing device,one or more other components described in the present disclosure, or acombination thereof in accordance with various aspects of the presentdisclosure.

The base station beam manager 515 may identify a first beam monitoringpattern for transmitting control channel transmissions, the first beammonitoring pattern indicating that the control channel transmissions areto be transmitted using a first subset of transmission beams in a firstsubset of time periods and that the control channel transmissions are tobe transmitted using a second subset of transmission beams in a secondsubset of time periods. The base station beam manager 515 may also causethe control channel transmissions to be transmitted during the firstsubset of time periods using the first subset of transmission beams, anddetermine, during the first subset of time periods, that the transmittedfirst subset of transmission beams exceeds a reliability threshold. Thebase station beam manager 515 may cause the transmissions to becontinued using the first subset of transmission beams for at least aportion of the second subset of time periods responsive to determiningthat the transmitted first subset of transmission beams exceeds areliability threshold.

The transmitter 520 may transmit signals generated by other componentsof the wireless device 505. In some examples, the transmitter 520 may becollocated with the receiver 510 in a transceiver module. For example,the transmitter 520 may be an example of aspects of the transceiver 835described with reference to FIG. 8. The transmitter 520 may utilize asingle antenna or a set of antennas.

FIG. 6 shows a block diagram 600 of a wireless device 605 that supportsdynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure. The wireless device605 may be an example of aspects of a wireless device 505 or a basestation 105 as described with reference to FIG. 5. The wireless device605 may include a receiver 610, a base station beam manager 615, and atransmitter 620. The wireless device 605 may also include a processor.Each of these components may be in communication with one another (e.g.,via one or more buses).

The receiver 610 may receive information such as packets, user data, orcontrol information associated with various information channels (e.g.,control channels, data channels, and information related to dynamicoverriding of control beam monitoring configuration, etc.). Informationmay be passed on to other components of the wireless device 605. Thereceiver 610 may be an example of aspects of the transceiver 835described with reference to FIG. 8. The receiver 610 may utilize asingle antenna or a set of antennas.

The base station beam manager 615 may be an example of aspects of thebase station beam manager 815 described with reference to FIG. 8. Thebase station beam manager 615 may also include a monitoring patternmanager 625, a beam transmission manager 630, a measurement manager 635,and a pattern override manager 640.

The monitoring pattern manager 625 may identify a first beam monitoringpattern for transmitting control channel transmissions, the first beammonitoring pattern indicating that the control channel transmissions areto be transmitted using a first subset of transmission beams in a firstsubset of time periods and that the control channel transmissions are tobe transmitted using a second subset of transmission beams in a secondsubset of time periods. In some cases, the first beam monitoring patternis selected from a set of available beam monitoring patterns based onchannel conditions between the UE and the base station, and a secondbeam monitoring pattern is selected from a set of override beammonitoring patterns. In some cases, the second beam monitoring patternis used when continuing transmissions using the first subset oftransmission beams for at least the portion of the second subset of timeperiods. In some cases, the first subset of transmission beams includesa first transmission beam and the second subset of transmission beamsincludes a second transmission beam, and where the second transmissionbeam is a weaker transmission beam than the first transmission beam. Insome cases, the control channel transmissions transmitted using thesecond transmission beam are transmitted at a higher power, a higheraggregation level, or any combination thereof, relative to the controlchannel transmissions using the first transmission beam. In some cases,the first beam monitoring pattern maps the first subset of transmissionbeams to a first number of slots in the first subset of time periods andthe second subset of transmission beams to a second number of slots inthe second subset of time periods.

The beam transmission manager 630 may transmit the control channeltransmissions during the first subset of time periods using the firstsubset of transmission beams. The measurement manager 635 may determine,during the first subset of time periods, that the transmitted firstsubset of transmission beams exceeds a reliability threshold. In somecases, such a determination may include determining that a predeterminednumber of acknowledgments are received during the first subset of timeperiods, a signal quality of the first subset of transmission beamsexceeds a signal quality threshold, or any combination thereof, andwhere an indication of the determination is transmitted to the UE.

The pattern override manager 640 may indicate that a configured beammonitoring pattern is to be overridden. In some cases, an indicationthat a first subset of transmission beams is to be continued may besignaled to a UE, and an acknowledgment may be received from the UEregarding the indication. In such cases, transmissions using the firstsubset of transmission beams may be continued for at least a portion ofthe second subset of time periods. In some cases, the determiningincludes receiving an indication from a UE that the transmitted firstsubset of transmission beams exceeds the reliability threshold andacknowledging receipt of the indication. In some cases, the indicationis received in a MAC CE or in UCI received from the UE. In some cases,the monitoring pattern may be overridden autonomously at the UE and atthe base station. In some cases, the continuing transmissions using thefirst subset of transmission beams includes continuing transmissionsusing the first subset of transmission beams for an identified timeduration, and resuming the first beam monitoring pattern after anexpiration of the identified time duration. In some cases, thecontinuing transmissions using the first subset of transmission beamsfurther includes determining, prior to the expiration of the identifiedtime duration, that the transmitted first subset of transmission beamscontinue to exceed the reliability threshold, and continuingtransmissions using the first subset of transmission beams for anotherof the identified time duration.

The transmitter 620 may transmit signals generated by other componentsof the wireless device 605. In some examples, the transmitter 620 may becollocated with a receiver 610 in a transceiver module. For example, thetransmitter 620 may be an example of aspects of the transceiver 835described with reference to FIG. 8. The transmitter 620 may utilize asingle antenna or a set of antennas.

FIG. 7 shows a block diagram 700 of a base station beam manager 715 thatsupports dynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure. The base station beammanager 715 may be an example of aspects of a base station beam manager515, a base station beam manager 615, or a base station beam manager 815described with reference to FIGS. 5, 6, and 8. The base station beammanager 715 may include a monitoring pattern manager 720, a beamtransmission manager 725, a measurement manager 730, a pattern overridemanager 735, and a configuration manager 740. Each of these modules maycommunicate, directly or indirectly, with one another (e.g., via one ormore buses).

The monitoring pattern manager 720 may identify a first beam monitoringpattern for transmitting control channel transmissions, the first beammonitoring pattern indicating that the control channel transmissions areto be transmitted using a first subset of transmission beams in a firstsubset of time periods and that the control channel transmissions are tobe transmitted using a second subset of transmission beams in a secondsubset of time periods. In some cases, the first beam monitoring patternis selected from a set of available beam monitoring patterns based onchannel conditions between the UE and the base station, and a secondbeam monitoring pattern is selected from a set of override beammonitoring patterns.

In some cases, the second beam monitoring pattern is used whencontinuing transmissions using the first subset of transmission beamsfor at least the portion of the second subset of time periods. In somecases, the first subset of transmission beams includes a firsttransmission beam and the second subset of transmission beams includes asecond transmission beam, and where the second transmission beam is aweaker transmission beam than the first transmission beam. In somecases, the control channel transmissions transmitted using the secondtransmission beam are transmitted at a higher power or a higheraggregation level relative to the control channel transmissions usingthe first transmission beam, or any combination thereof.

The beam transmission manager 725 may transmit the control channeltransmissions during the first subset of time periods using the firstsubset of transmission beams. The measurement manager 730 may determine,during the first subset of time periods, that the transmitted firstsubset of transmission beams exceeds a reliability threshold. In somecases, the determining includes determining that a predetermined numberof acknowledgments are received during the first subset of time periods,a signal quality of the first subset of transmission beams exceeds asignal quality threshold, or any combination thereof, and where anindication of the determination is transmitted to the UE.

The pattern override manager 735 may indicate that a configured beammonitoring pattern is to be overridden. In some cases, an indicationthat a first subset of transmission beams is to be continued may besignaled to a UE, and an acknowledgment may be received from the UE ofthe indication. In such cases, transmissions using the first subset oftransmission beams may be continued for at least a portion of the secondsubset of time periods. In some cases, the determining includesreceiving an indication from a UE that the transmitted first subset oftransmission beams exceeds the reliability threshold and acknowledgingreceipt of the indication.

In some cases, the indication is received in a MAC CE or in UCI receivedfrom the UE. In some cases, the monitoring pattern may be overriddenautonomously at the UE and at the base station. In some cases, thecontinuing transmissions using the first subset of transmission beamsincludes continuing transmissions using the first subset of transmissionbeams for an identified time duration, and resuming the first beammonitoring pattern after an expiration of the identified time duration.In some cases, the continuing transmissions using the first subset oftransmission beams further includes determining, prior to the expirationof the identified time duration, that the transmitted first subset oftransmission beams continue to exceed the reliability threshold, andcontinuing transmissions using the first subset of transmission beamsfor another of the identified time duration.

The configuration manager 740 may configure a UE with the first beammonitoring pattern and one or more parameters for making a determinationto override use of the second subset of transmission beams of the beammonitoring pattern and continue to use the first subset of transmissionbeams for at least the portion of the second subset of time periods. Insome cases, an indication may be transmitted to a UE that indicates thefirst subset of transmission beams is to be used for at least theportion of the second subset of time periods. In some cases, theconfiguration manager 740 may configure the UE to determine, during thefirst subset of time periods, whether the transmitted first subset oftransmission beams exceeds the reliability threshold, and configure theUE to continue using the first subset of transmission beams for at leastthe portion of the second subset of time periods based on thedetermination.

In some cases, the configuration is provided to the UE semi-staticallyusing control channel signaling such as radio resource control (RRC)signaling. In some cases, the indication indicates that the first subsetof transmission beams is to be used for both the first subset and thesecond subset of time periods for an identified time duration. In somecases, the identified time duration is indicated with the indication oris preconfigured. In some cases, the indication is transmitted in a MACCE or in DCI included with the control channel transmissions. In somecases, the configuring includes configuring the UE with a same orsimilar set of metrics as the base station for determining to continueusing the first subset of transmission beams for at least the portion ofthe second subset of time periods.

FIG. 8 shows a diagram of a system 800 including a device 805 thatsupports dynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure. The device 805 may bean example of or include the components of the wireless device 505, thewireless device 605, or a base station 105 as described above, e.g.,with reference to FIGS. 5 and 6. The device 805 may include componentsfor bi-directional voice and data communications including componentsfor transmitting and receiving communications, including a base stationbeam manager 815, a processor 820, memory 825, software 830, atransceiver 835, an antenna 840, a network communications manager 845,and an inter-station communications manager 850. These components may bein electronic communication via one or more busses (e.g., bus 810). Thedevice 805 may communicate wirelessly with one or more UEs 115.

The processor 820 may include an intelligent hardware device, (e.g., ageneral-purpose processor, a DSP, a central processing unit (CPU), amicrocontroller, an ASIC, an FPGA, a programmable logic device, adiscrete gate or transistor logic component, a discrete hardwarecomponent, or any combination thereof). In some cases, the processor 820may be configured to operate a memory array using a memory controller.In other cases, a memory controller may be integrated into the processor820. The processor 820 may be configured to execute computer-readableinstructions stored in a memory to perform various functions (e.g.,functions or tasks supporting dynamic overriding of control beammonitoring configuration).

The memory 825 may include random access memory (RAM) and read onlymemory (ROM). The memory 825 may store computer-readable,computer-executable software 830 including instructions that, whenexecuted, cause the processor to perform various functions describedherein. In some cases, the memory 825 may contain, among other things, abasic input/output system (BIOS) which may control basic hardware and/orsoftware operation such as the interaction with peripheral components ordevices.

The software 830 may include code to implement aspects of the presentdisclosure, including code to support dynamic overriding of control beammonitoring configuration. The software 830 may be stored in anon-transitory computer-readable medium such as system memory or othermemory. In some cases, the software 830 may not be directly executableby the processor but may cause a computer (e.g., when compiled andexecuted) to perform functions described herein.

The transceiver 835 may communicate bi-directionally, via one or moreantennas, wired, or wireless links as described above. For example, thetransceiver 835 may represent a wireless transceiver and may communicatebi-directionally with another wireless transceiver. The transceiver 835may also include a modem to modulate the packets and provide themodulated packets to the antennas for transmission, and to demodulatepackets received from the antennas.

In some cases, the wireless device 805 may include a single antenna 840.However, in some cases the device may have more than one antenna 840,which may be capable of concurrently transmitting or receiving multiplewireless transmissions.

The network communications manager 845 may manage communications withthe core network (e.g., via one or more wired backhaul links). Forexample, the network communications manager 845 may manage the transferof data communications for client devices, such as one or more UEs 115.

The inter-station communications manager 850 may manage communicationswith other base stations 105, and may include a controller or schedulerfor controlling communications with the UEs 115 in cooperation with theother base stations 105. For example, the inter-station communicationsmanager 850 may coordinate scheduling for transmissions to the UEs 115for various interference mitigation techniques such as beamforming orjoint transmission. In some examples, the inter-station communicationsmanager 850 may provide an X2 interface within an LTE/LTE-A wirelesscommunication network technology to provide communication between thebase stations 105.

FIG. 9 shows a block diagram 900 of a wireless device 905 that supportsdynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure. The wireless device905 may be an example of aspects of a UE 115 as described herein. Thewireless device 905 may include a receiver 910, a UE beam manager 915,and a transmitter 920. The wireless device 905 may also include aprocessor. Each of these components may be in communication with oneanother (e.g., via one or more buses).

The receiver 910 may receive information such as packets, user data, orcontrol information associated with various information channels (e.g.,control channels, data channels, and information related to dynamicoverriding of control beam monitoring configuration, etc.). Informationmay be passed on to other components of the wireless device 905. Thereceiver 910 may be an example of aspects of the transceiver 1235described with reference to FIG. 12. The receiver 910 may utilize asingle antenna or a set of antennas.

The UE beam manager 915 may be an example of aspects of the UE beammanager 1215 described with reference to FIG. 12.

The UE beam manager 915 and/or at least some of its varioussub-components may be implemented in hardware, software executed by aprocessor, firmware, or any combination thereof. If implemented insoftware executed by a processor, the functions of the UE beam manager915 and/or at least some of its various sub-components may be executedby a general-purpose processor, a DSP, an ASIC, an FPGA or otherprogrammable logic device, discrete gate or transistor logic, discretehardware components, or any combination thereof designed to perform thefunctions described in the present disclosure. The UE beam manager 915and/or at least some of its various sub-components may be physicallylocated at various positions, including being distributed such thatportions of functions are implemented at different physical locations byone or more physical devices.

In some examples, the UE beam manager 915 and/or at least some of itsvarious sub-components may be a separate and distinct component inaccordance with various aspects of the present disclosure. In otherexamples, the UE beam manager 915 and/or at least some of its varioussub-components may be combined with one or more other hardwarecomponents, including but not limited to an I/O component, atransceiver, a network server, another computing device, one or moreother components described in the present disclosure, or a combinationthereof in accordance with various aspects of the present disclosure.

The UE beam manager 915 may identify a beam monitoring pattern formonitoring control channel transmissions on transmission beams from abase station. In some examples, the beam monitoring pattern may indicatethat the control channel transmissions are to be transmitted using afirst subset of transmission beams in a first subset of time periods andusing a second subset of transmission beams in a second subset of timeperiods. The UE beam manager 915 may also receive the control channeltransmissions during the first subset of time periods over the firstsubset of transmission beams. The UE beam manager 915 may determine,during the first subset of time periods, that the transmitted firstsubset of transmission beams exceeds a reliability threshold, andcontinue receiving the control channel transmissions using the firstsubset of transmission beams for at least a portion of the second subsetof time periods responsive to the determination.

The transmitter 920 may transmit signals generated by other componentsof the device. In some examples, the transmitter 920 may be collocatedwith the receiver 910 in a transceiver module. For example, thetransmitter 920 may be an example of aspects of the transceiver 1235described with reference to FIG. 12. The transmitter 920 may utilize asingle antenna or a set of antennas.

FIG. 10 shows a block diagram 1000 of a wireless device 1005 thatsupports dynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure. The wireless device1005 may be an example of aspects of a wireless device 905 or a UE 115as described with reference to FIG. 9. The wireless device 1005 mayinclude a receiver 1010, a UE beam manager 1015, and a transmitter 1020.The wireless device 1005 may also include a processor. Each of thesecomponents may be in communication with one another (e.g., via one ormore buses).

The receiver 1010 may receive information such as packets, user data, orcontrol information associated with various information channels (e.g.,control channels, data channels, and information related to dynamicoverriding of control beam monitoring configuration, etc.). The receiver1010 may pass this and other information on to other components of thewireless device 1020. The receiver 1010 may be an example of aspects ofthe transceiver 1235 described with reference to FIG. 12. The receiver1010 may utilize a single antenna or a set of antennas.

The UE beam manager 1015 may be an example of aspects of the UE beammanager 1215 described with reference to FIG. 12. The UE beam manager1015 may also include a monitoring pattern manager 1025, a beammonitoring manager 1030, a measurement manager 1035, and a patternoverride manager 1040.

The monitoring pattern manager 1025 may identify a beam monitoringpattern for monitoring control channel transmissions on transmissionbeams from a base station, the beam monitoring pattern indicating thatthe control channel transmissions are to be transmitted using a firstsubset of transmission beams in a first subset of time periods and thatthe control channel transmissions are to be transmitted using a secondsubset of transmission beams in a second subset of time periods.

The beam monitoring manager 1030 may receive the control channeltransmissions during the first subset of time periods over the firstsubset of transmission beams.

The measurement manager 1035 may determine, during the first subset oftime periods, that the transmitted first subset of transmission beamsexceeds a reliability threshold. In some cases, the determining includesdetermining that a predetermined number of acknowledgments are receivedduring the first subset of time periods determining that a signalquality of the first subset of transmission beams exceeds a signalquality threshold, or any combination thereof.

The pattern override manager 1040 may override a configured monitoringpattern and continue receiving the control channel transmissions usingthe first subset of transmission beams for at least a portion of thesecond subset of time periods. In some cases, an indication may bereceived from a base station that indicates the first subset oftransmission beams is to be used for at least the portion of the secondsubset of time periods. In some cases, the indication indicates that thefirst subset of transmission beams is to be used for both the firstsubset and the second subset of time periods for an identified timeduration. In some cases, the identified time duration is indicated withthe indication or is preconfigured. In some cases, the indication isreceived in a MAC CE or in DCI included with the control channeltransmissions.

In some cases, the wireless device 1005 may transmit an indication tothe base station that the transmitted first subset of transmission beamsexceeds the reliability threshold, and receive an acknowledgment ofreceipt of the indication, and where the continuing receiving thecontrol channel transmissions using the first subset of transmissionbeams is performed responsive to receiving the acknowledgment. In somecases, the indication is transmitted in a MAC CE or in UCI. In somecases, the continuing receiving the control channel transmissions usingthe first subset of transmission beams includes continuing receiving thecontrol channel transmissions using the first subset of transmissionbeams for an identified time duration, and resuming the first beammonitoring pattern after an expiration of the identified time duration.In some cases, the continuing receiving the control channeltransmissions using the first subset of transmission beams furtherincludes determining, prior to the expiration of the identified timeduration, that the transmitted first subset of transmission beamscontinue to exceeds the reliability threshold, and continuing receivingthe control channel transmissions using the first subset of transmissionbeams for another of the identified time duration.

The transmitter 1020 may transmit signals generated by other componentsof the wireless device 1005. In some examples, the transmitter 1020 maybe collocated with a receiver 1010 in a transceiver module. For example,the transmitter 1020 may be an example of aspects of the transceiver1235 described with reference to FIG. 12. The transmitter 1020 mayutilize a single antenna or a set of antennas.

FIG. 11 shows a block diagram 1100 of a UE beam manager 1115 thatsupports dynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure. The UE beam manager1115 may be an example of aspects of a UE beam manager 1215 describedwith reference to FIGS. 9, 10, and 12. The UE beam manager 1115 mayinclude a monitoring pattern manager 1120, a beam monitoring manager1125, a measurement manager 1130, a pattern override manager 1135, and aconfiguration manager 1140. Each of these modules may communicate,directly or indirectly, with one another (e.g., via one or more buses).

The monitoring pattern manager 1120 may identify a beam monitoringpattern for monitoring control channel transmissions on transmissionbeams from a base station. The beam monitoring pattern may indicate thatthe control channel transmissions are to be transmitted using a firstsubset of transmission beams in a first subset of time periods and thatthe control channel transmissions are to be transmitted using a secondsubset of transmission beams in a second subset of time periods. In somecases, the first beam monitoring pattern maps the first subset oftransmission beams to a first number of slots in the first subset oftime periods and the second subset of transmission beams to a secondnumber of slots in the second subset of time periods.

The beam monitoring manager 1125 may receive the control channeltransmissions during the first subset of time periods over the firstsubset of transmission beams.

The measurement manager 1130 may determine, during the first subset oftime periods, that the transmitted first subset of transmission beamsexceeds a reliability threshold. In some cases, the determining includesdetermining that a predetermined number of acknowledgments are receivedduring the first subset of time periods, determining that a signalquality of the first subset of transmission beams exceeds a signalquality threshold, or any combination thereof.

The pattern override manager 1135 may override a configured monitoringpattern and continue receiving the control channel transmissions usingthe first subset of transmission beams for at least a portion of thesecond subset of time periods. In some cases, an indication may bereceived from the base station that indicates the first subset oftransmission beams is to be used for at least the portion of the secondsubset of time periods. In some cases, the indication indicates that thefirst subset of transmission beams is to be used for both the firstsubset and the second subset of time periods for an identified timeduration. In some cases, the identified time duration is indicated withthe indication or is preconfigured. In some cases, the indication isreceived in a MAC CE or in DCI included with the control channeltransmissions.

In some cases, the wireless device 1115 may transmit an indication tothe base station that the transmitted first subset of transmission beamsexceeds the reliability threshold, and receive an acknowledgment ofreceipt of the indication, and where the continuing receiving thecontrol channel transmissions using the first subset of transmissionbeams is performed responsive to receiving the acknowledgment. In somecases, the indication is transmitted in a MAC CE or in UCI. In somecases, the continuing receiving the control channel transmissions usingthe first subset of transmission beams includes continuing receiving thecontrol channel transmissions using the first subset of transmissionbeams for an identified time duration, and resuming the first beammonitoring pattern after an expiration of the identified time duration.In some cases, the continuing receiving the control channeltransmissions using the first subset of transmission beams furtherincludes determining, prior to the expiration of the identified timeduration, that the transmitted first subset of transmission beamscontinue to exceed the reliability threshold, and continuing receivingthe control channel transmissions using the first subset of transmissionbeams for another of the identified time duration.

The configuration manager 1140 may receive configuration informationwith the first beam monitoring pattern and one or more parameters formaking a determination to override use of the second subset oftransmission beams of the beam monitoring pattern and continue to usethe first subset of transmission beams for at least the portion of thesecond subset of time periods. In some cases, the configuration manager1140 may receive, from the base station, configuration information todetermine, during the first subset of time periods, whether thetransmitted first subset of transmission beams exceeds the reliabilitythreshold, and to continue using the first subset of transmission beamsfor at least the portion of the second subset of time periods based onthe determination. In some cases, the continuing receiving the controlchannel transmissions using the first subset of transmission beams isperformed autonomously at the base station and at the wireless device1115. In some cases, the configuration is received semi-statically usingcontrol channel signaling such as RRC signaling.

FIG. 12 shows a diagram of a system 1200 including a device 1205 thatsupports dynamic overriding of control beam monitoring configuration inaccordance with aspects of the present disclosure. The device 1205 maybe an example of or include the components of UE 115 as described above,e.g., with reference to FIG. 1. The device 1205 may include componentsfor bi-directional voice and data communications including componentsfor transmitting and receiving communications, including a UE beammanager 1215, a processor 1220, memory 1225, software 1230, atransceiver 1235, an antenna 1240, and an I/O controller 1245. Thesecomponents may be in electronic communication via one or more busses(e.g., bus 1210). The device 1205 may communicate wirelessly with one ormore base stations 105.

The processor 1220 may include an intelligent hardware device (e.g., ageneral-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, anFPGA, a programmable logic device, a discrete gate or transistor logiccomponent, a discrete hardware component, or any combination thereof).In some cases, the processor 1220 may be configured to operate a memoryarray using a memory controller. In other cases, a memory controller maybe integrated into the processor 1220. The processor 1220 may beconfigured to execute computer-readable instructions stored in a memoryto perform various functions (e.g., functions or tasks supportingdynamic overriding of control beam monitoring configuration).

The memory 1225 may include RAM and ROM. The memory 1225 may storecomputer-readable, computer-executable software 1230 includinginstructions that, when executed, cause the processor to perform variousfunctions described herein. In some cases, the memory 1225 may contain,among other things, a BIOS which may control basic hardware and/orsoftware operation such as the interaction with peripheral components ordevices.

The software 1230 may include code to implement aspects of the presentdisclosure, including code to support dynamic overriding of control beammonitoring configuration. The software 1230 may be stored in anon-transitory computer-readable medium such as system memory or othermemory. In some cases, the software 1230 may not be directly executableby the processor but may cause a computer (e.g., when compiled andexecuted) to perform functions described herein.

The transceiver 1235 may communicate bi-directionally, via one or moreantennas, wired, or wireless links as described above. For example, thetransceiver 1235 may represent a wireless transceiver and maycommunicate bi-directionally with another wireless transceiver. Thetransceiver 1235 may also include a modem to modulate the packets andprovide the modulated packets to the antennas for transmission, and todemodulate packets received from the antennas.

In some cases, the device 1205 may include a single antenna 1240.However, in some cases the device 1205 may have more than one antenna1240, which may be capable of concurrently transmitting or receivingmultiple wireless transmissions.

The I/O controller 1245 may manage input and output signals for thedevice 1205. The I/O controller 1245 may also manage peripherals notintegrated into the device 1205. In some cases, the I/O controller 1245may represent a physical connection or port to an external peripheral.In some cases, the I/O controller 1245 may utilize an operating systemsuch as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS/2®, UNIX®, LINUX®, oranother known operating system. In other cases, the I/O controller 1245may represent or interact with a modem, a keyboard, a mouse, atouchscreen, or a similar device. In some cases, the I/O controller 1245may be implemented as part of a processor. In some cases, a user mayinteract with the device 1205 via the I/O controller 1245 or viahardware components controlled by the I/O controller 1245.

FIG. 13 shows a flowchart illustrating a method 1300 for dynamicoverriding of control beam monitoring configuration in accordance withaspects of the present disclosure. The operations of method 1300 may beimplemented by a base station 105 or its components as described herein.For example, the operations of method 1300 may be performed by a basestation beam manager as described with reference to FIGS. 5 through 8.In some examples, a base station 105 may execute a set of codes tocontrol the functional elements of a device to perform the functionsdescribed below. Additionally or alternatively, the base station 105 mayperform aspects of the functions described below using special-purposehardware.

At block 1305, the base station 105 may identify a first beam monitoringpattern for transmitting control channel transmissions, the first beammonitoring pattern indicating that the control channel transmissions areto be transmitted using a first subset of transmission beams in a firstsubset of time periods and that the control channel transmissions are tobe transmitted using a second subset of transmission beams in a secondsubset of time periods. The operations of block 1305 may be performedaccording to the methods described herein. In certain examples, aspectsof the operations of block 1305 may be performed by a monitoring patternmanager as described with reference to FIGS. 5 through 8.

At block 1310, the base station 105 may transmit the control channeltransmissions during the first subset of time periods using the firstsubset of transmission beams. The operations of block 1310 may beperformed according to the methods described herein. In certainexamples, aspects of the operations of block 1310 may be performed by abeam transmission manager as described with reference to FIGS. 5 through8.

At block 1315, the base station 105 may determine, during the firstsubset of time periods, that the transmitted first subset oftransmission beams exceeds a reliability threshold. The operations ofblock 1315 may be performed according to the methods described herein.In certain examples, aspects of the operations of block 1315 may beperformed by a measurement manager as described with reference to FIGS.5 through 8.

At block 1320, the base station 105 may continue transmissions using thefirst subset of transmission beams for at least a portion of the secondsubset of time periods responsive to the determining. The operations ofblock 1320 may be performed according to the methods described herein.In certain examples, aspects of the operations of block 1320 may beperformed by a pattern override manager as described with reference toFIGS. 5 through 8.

In some examples, the method 1300 may include determining, during thefirst subset of time periods, that the transmitted first subset oftransmission beams does not exceed a reliability threshold. The method1300 may also include identifying a second beam monitoring pattern fortransmitting control channel transmissions, the second beam monitoringpattern indicating that the control channel transmissions are to betransmitted using a third subset of transmission beams in a third subsetof time periods and that the control channel transmissions are to betransmitted using a fourth subset of transmission beams in a fourthsubset of time periods. The method 1300 may also include overriding thefirst beam monitoring pattern with the second beam monitoring pattern.

FIG. 14 shows a flowchart illustrating a method 1400 for dynamicoverriding of control beam monitoring configuration in accordance withaspects of the present disclosure. The operations of method 1400 may beimplemented by a base station 105 or its components as described herein.For example, the operations of method 1400 may be performed by a basestation beam manager as described with reference to FIGS. 5 through 8.In some examples, a base station 105 may execute a set of codes tocontrol the functional elements of a device to perform the functionsdescribed below. Additionally or alternatively, the base station 105 mayperform aspects of the functions described below using special-purposehardware.

At block 1405, the base station 105 may identify a first beam monitoringpattern for transmitting control channel transmissions, the first beammonitoring pattern indicating that the control channel transmissions areto be transmitted using a first subset of transmission beams in a firstsubset of time periods and that the control channel transmissions are tobe transmitted using a second subset of transmission beams in a secondsubset of time periods. The operations of block 1405 may be performedaccording to the methods described herein. In certain examples, aspectsof the operations of block 1405 may be performed by a monitoring patternmanager as described with reference to FIGS. 5 through 8.

At block 1410, the base station 105 may configure a UE with the firstbeam monitoring pattern and one or more parameters for making adetermination to override use of the second subset of transmission beamsof the beam monitoring pattern and continue to use the first subset oftransmission beams for at least the portion of the second subset of timeperiods. The operations of block 1410 may be performed according to themethods described herein. In certain examples, aspects of the operationsof block 1410 may be performed by a configuration manager as describedwith reference to FIGS. 5 through 8.

At block 1415, the base station 105 may transmit the control channeltransmissions during the first subset of time periods using the firstsubset of transmission beams. The operations of block 1415 may beperformed according to the methods described herein. In certainexamples, aspects of the operations of block 1415 may be performed by abeam transmission manager as described with reference to FIGS. 5 through8.

At block 1420, the base station 105 may determine, during the firstsubset of time periods, that the transmitted first subset oftransmission beams exceeds a reliability threshold. The operations ofblock 1420 may be performed according to the methods described herein.In certain examples, aspects of the operations of block 1420 may beperformed by a measurement manager as described with reference to FIGS.5 through 8.

At block 1425, the base station 105 may continue transmissions using thefirst subset of transmission beams for at least a portion of the secondsubset of time periods responsive to the determining. The operations ofblock 1425 may be performed according to the methods described herein.In certain examples, aspects of the operations of block 1425 may beperformed by a pattern override manager as described with reference toFIGS. 5 through 8.

FIG. 15 shows a flowchart illustrating a method 1500 for dynamicoverriding of control beam monitoring configuration in accordance withaspects of the present disclosure. The operations of method 1500 may beimplemented by a base station 105 or its components as described herein.For example, the operations of the method 1500 may be performed by abase station beam manager as described with reference to FIGS. 5 through8. In some examples, a base station 105 may execute a set of codes tocontrol the functional elements of the device to perform the functionsdescribed below. Additionally or alternatively, the base station 105 mayperform aspects of the functions described below using special-purposehardware.

At block 1505, the base station 105 may identify a first beam monitoringpattern for transmitting control channel transmissions, the first beammonitoring pattern indicating that the control channel transmissions areto be transmitted using a first subset of transmission beams in a firstsubset of time periods and that the control channel transmissions are tobe transmitted using a second subset of transmission beams in a secondsubset of time periods. The operations of block 1505 may be performedaccording to the methods described herein. In certain examples, aspectsof the operations of block 1505 may be performed by a monitoring patternmanager as described with reference to FIGS. 5 through 8.

At block 1510, the base station 105 may transmit the control channeltransmissions during the first subset of time periods using the firstsubset of transmission beams. The operations of block 1510 may beperformed according to the methods described herein. In certainexamples, aspects of the operations of block 1510 may be performed by abeam transmission manager as described with reference to FIGS. 5 through8.

At block 1515, the base station 105 may determine, during the firstsubset of time periods, that the transmitted first subset oftransmission beams exceeds a reliability threshold. The operations ofblock 1515 may be performed according to the methods described herein.In certain examples, aspects of the operations of block 1515 may beperformed by a measurement manager as described with reference to FIGS.5 through 8.

At block 1520, the base station 105 may transmit an indication to a UEthat indicates the first subset of transmission beams is to be used forat least the portion of the second subset of time periods. Theoperations of block 1520 may be performed according to the methodsdescribed herein. In certain examples, aspects of the operations ofblock 1520 may be performed by a configuration manager as described withreference to FIGS. 5 through 8.

At block 1525, the base station 105 may receive an acknowledgment fromthe UE of the indication. The operations of block 1525 may be performedaccording to the methods described herein. In certain examples, aspectsof the operations of block 1525 may be performed by a pattern overridemanager as described with reference to FIGS. 5 through 8.

At block 1530, the base station 105 may continue transmissions using thefirst subset of transmission beams for at least a portion of the secondsubset of time periods responsive to the determining. The operations ofblock 1530 may be performed according to the methods described herein.In certain examples, aspects of the operations of block 1530 may beperformed by a pattern override manager as described with reference toFIGS. 5 through 8.

In some examples, the method 1500 may include determining, during thefirst subset of time periods, that the transmitted first subset oftransmission beams does not exceed a reliability threshold. The method1500 may also include identifying a second beam monitoring pattern fortransmitting control channel transmissions, the second beam monitoringpattern indicating that the control channel transmissions are to betransmitted using a third subset of transmission beams in a third subsetof time periods and that the control channel transmissions are to betransmitted using a fourth subset of transmission beams in a fourthsubset of time periods. The method 1500 may also include overriding thefirst beam monitoring pattern with the second beam monitoring pattern.

FIG. 16 shows a flowchart illustrating a method 1600 for dynamicoverriding of control beam monitoring configuration in accordance withaspects of the present disclosure. The operations of method 1600 may beimplemented by a UE 115 or its components as described herein. Forexample, the operations of the method 1600 may be performed by a UE beammanager as described with reference to FIGS. 9 through 12. In someexamples, the UE 115 may execute a set of codes to control thefunctional elements of the device to perform the functions describedbelow. Additionally or alternatively, the UE 115 may perform aspects ofthe functions described below using special-purpose hardware.

At block 1605, the UE 115 may identify a beam monitoring pattern formonitoring control channel transmissions on transmission beams from abase station, the beam monitoring pattern indicating that the controlchannel transmissions are to be transmitted using a first subset oftransmission beams in a first subset of time periods and that thecontrol channel transmissions are to be transmitted using a secondsubset of transmission beams in a second subset of time periods. Theoperations of block 1605 may be performed according to the methodsdescribed herein. In certain examples, aspects of the operations ofblock 1605 may be performed by a monitoring pattern manager as describedwith reference to FIGS. 9 through 12.

At block 1610, the UE 115 may receive the control channel transmissionsduring the first subset of time periods over the first subset oftransmission beams. The operations of block 1610 may be performedaccording to the methods described herein. In certain examples, aspectsof the operations of block 1610 may be performed by a beam monitoringmanager as described with reference to FIGS. 9 through 12.

At block 1615, the UE 115 may determine, during the first subset of timeperiods, that the transmitted first subset of transmission beams exceedsa reliability threshold. The operations of block 1615 may be performedaccording to the methods described herein. In certain examples, aspectsof the operations of block 1615 may be performed by a measurementmanager as described with reference to FIGS. 9 through 12.

At block 1620, the UE 115 may continue receiving the control channeltransmissions using the first subset of transmission beams for at leasta portion of the second subset of time periods responsive to thedetermining. The operations of block 1620 may be performed according tothe methods described herein. In certain examples, aspects of theoperations of block 1620 may be performed by a pattern override manageras described with reference to FIGS. 9 through 12.

At optional block 1625, the UE 115 may transmit an acknowledgment of theindication to the base station. The operations of block 1625 may beperformed according to the methods described herein. In certainexamples, aspects of the operations of block 1625 may be performed by apattern override manager as described with reference to FIGS. 9 through12.

It should be noted that the methods described above describe possibleimplementations, and that the operations and the steps may be rearrangedor otherwise modified and that other implementations are possible.Furthermore, aspects from two or more of the methods may be combined.

Techniques described herein may be used for various wirelesscommunications systems such as CDMA, TDMA, FDMA, OFDMA, single carrierfrequency division multiple access (SC-FDMA), and other systems. Theterms “system” and “network” are often used interchangeably. A CDMAsystem may implement a radio technology such as CDMA2000, UniversalTerrestrial Radio Access (UTRA), etc. CDMA2000 covers IS-2000, IS-95,and IS-856 standards. IS-2000 Releases may be commonly referred to asCDMA2000 1×, 1×, etc. IS-856 (TIA-856) is commonly referred to asCDMA2000 1×EV-DO, High Rate Packet Data (HRPD), etc. UTRA includesWideband CDMA (WCDMA) and other variants of CDMA. A TDMA system mayimplement a radio technology such as Global System for MobileCommunications (GSM).

An OFDMA system may implement a radio technology such as Ultra MobileBroadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical andElectronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal MobileTelecommunications System (UMTS). LTE and LTE-A are releases of UMTSthat use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, NR, and GSM aredescribed in documents from the organization named “3rd GenerationPartnership Project” (3GPP). CDMA2000 and UMB are described in documentsfrom an organization named “3rd Generation Partnership Project 2”(3GPP2). The techniques described herein may be used for the systems andradio technologies mentioned above as well as other systems and radiotechnologies. While aspects of an LTE or an NR system may be describedfor purposes of example, and LTE or NR terminology may be used in muchof the description, the techniques described herein are applicablebeyond LTE or NR applications.

In LTE/LTE-A networks, including such networks described herein, theterm evolved node B (eNB) may be generally used to describe the basestations. The wireless communications system or systems described hereinmay include a heterogeneous LTE/LTE-A or NR network in which differenttypes of eNBs provide coverage for various geographical regions. Forexample, each eNB, next generation NodeB (gNB), or base station mayprovide communication coverage for a macro cell, a small cell, or othertypes of cell. The term “cell” may be used to describe a base station, acarrier or component carrier associated with a base station, or acoverage area (e.g., sector, etc.) of a carrier or base station,depending on context.

Base stations may include or may be referred to by those skilled in theart as a base transceiver station, a radio base station, an accesspoint, a radio transceiver, a NodeB, eNodeB (eNB), gNB, Home NodeB, aHome eNodeB, or some other suitable terminology. The geographic coveragearea for a base station may be divided into sectors making up only aportion of the coverage area. The wireless communications system orsystems described herein may include base stations of different types(e.g., macro or small cell base stations). The UEs described herein maybe able to communicate with various types of base stations and networkequipment including macro eNBs, small cell eNBs, gNBs, relay basestations, and the like. There may be overlapping geographic coverageareas for different technologies.

A macro cell generally covers a relatively large geographic area (e.g.,several kilometers in radius) and may allow unrestricted access by UEswith service subscriptions with the network provider. A small cell is alower-powered base station, as compared with a macro cell, that mayoperate in the same or different (e.g., licensed, unlicensed, etc.)frequency bands as macro cells. Small cells may include pico cells,femto cells, and micro cells according to various examples. A pico cell,for example, may cover a small geographic area and may allowunrestricted access by UEs with service subscriptions with the networkprovider. A femto cell may also cover a small geographic area (e.g., ahome) and may provide restricted access by UEs having an associationwith the femto cell (e.g., UEs in a closed subscriber group (CSG), UEsfor users in the home, and the like). An eNB for a macro cell may bereferred to as a macro eNB. An eNB for a small cell may be referred toas a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB maysupport one or multiple (e.g., two, three, four, and the like) cells(e.g., component carriers).

The wireless communications system or systems described herein maysupport synchronous or asynchronous operation. For synchronousoperation, the base stations may have similar frame timing, andtransmissions from different base stations may be approximately alignedin time. For asynchronous operation, the base stations may havedifferent frame timing, and transmissions from different base stationsmay not be aligned in time. The techniques described herein may be usedfor either synchronous or asynchronous operations.

The downlink transmissions described herein may also be called forwardlink transmissions while the uplink transmissions may also be calledreverse link transmissions. Each communication link describedherein—including, for example, wireless communications system 100 and200 of FIGS. 1 and 2—may include one or more carriers, where eachcarrier may be a signal made up of multiple sub-carriers (e.g., waveformsignals of different frequencies).

The description set forth herein, in connection with the appendeddrawings, describes example configurations and does not represent allthe examples that may be implemented or that are within the scope of theclaims. The term “exemplary” used herein means “serving as an example,instance, or illustration,” and not “preferred” or “advantageous overother examples.” The detailed description includes specific details forthe purpose of providing an understanding of the described techniques.These techniques, however, may be practiced without these specificdetails. In some instances, well-known structures and devices are shownin block diagram form in order to avoid obscuring the concepts of thedescribed examples.

In the appended figures, similar components or features may have thesame reference label. Further, various components of the same type maybe distinguished by following the reference label by a dash and a secondlabel that distinguishes among the similar components. If just the firstreference label is used in the specification, the description isapplicable to any one of the similar components having the same firstreference label irrespective of the second reference label.

Information and signals described herein may be represented using any ofa variety of different technologies and techniques. For example, data,instructions, commands, information, signals, bits, symbols, and chipsthat may be referenced throughout the above description may berepresented by voltages, currents, electromagnetic waves, magneticfields or particles, optical fields or particles, or any combinationthereof.

The various illustrative blocks and modules described in connection withthe disclosure herein may be implemented or performed with ageneral-purpose processor, a DSP, an ASIC, an FPGA or other programmablelogic device, discrete gate or transistor logic, discrete hardwarecomponents, or any combination thereof designed to perform the functionsdescribed herein. A general-purpose processor may be a microprocessor,but in the alternative, the processor may be any conventional processor,controller, microcontroller, or state machine. A processor may also beimplemented as a combination of computing devices (e.g., a combinationof a DSP and a microprocessor, multiple microprocessors, one or moremicroprocessors in conjunction with a DSP core, or any other suchconfiguration).

The functions described herein may be implemented in hardware, softwareexecuted by a processor, firmware, or any combination thereof. Ifimplemented in software executed by a processor, the functions may bestored on or transmitted over as one or more instructions or code on acomputer-readable medium. Other examples and implementations are withinthe scope of the disclosure and appended claims. For example, due to thenature of software, functions described above can be implemented usingsoftware executed by a processor, hardware, firmware, hardwiring, orcombinations of any of these. Features implementing functions may alsobe physically located at various positions, including being distributedsuch that portions of functions are implemented at different physicallocations. Also, as used herein, including in the claims, “or” as usedin a list of items (for example, a list of items prefaced by a phrasesuch as “at least one of” or “one or more of”) indicates an inclusivelist such that, for example, a list of at least one of A, B, or C meansA or B or C or AB or AC or BC or ABC (i.e., A and B and C). Also, asused herein, the phrase “based on” shall not be construed as a referenceto a closed set of conditions. For example, an exemplary step that isdescribed as “based on condition A” may be based on both a condition Aand a condition B without departing from the scope of the presentdisclosure. In other words, as used herein, the phrase “based on” shallbe construed in the same manner as the phrase “based at least in parton.”

Computer-readable media includes both non-transitory computer storagemedia and communication media including any medium that facilitatestransfer of a computer program from one place to another. Anon-transitory storage medium may be any available medium that can beaccessed by a general purpose or special purpose computer. By way ofexample, and not limitation, non-transitory computer-readable media maycomprise RAM, ROM, electrically erasable programmable read only memory(EEPROM), compact disk (CD) ROM or other optical disk storage, magneticdisk storage or other magnetic storage devices, or any othernon-transitory medium that can be used to carry or store desired programcode means in the form of instructions or data structures and that canbe accessed by a general-purpose or special-purpose computer, or ageneral-purpose or special-purpose processor. Also, any connection isproperly termed a computer-readable medium. For example, if the softwareis transmitted from a website, server, or other remote source using acoaxial cable, fiber optic cable, twisted pair, digital subscriber line(DSL), or wireless technologies such as infrared, radio, and microwave,then the coaxial cable, fiber optic cable, twisted pair, DSL, orwireless technologies such as infrared, radio, and microwave areincluded in the definition of medium. Disk and disc, as used herein,include CD, laser disc, optical disc, digital versatile disc (DVD),floppy disk and Blu-ray disc where disks usually reproduce datamagnetically, while discs reproduce data optically with lasers.Combinations of the above are also included within the scope ofcomputer-readable media.

The description herein is provided to enable a person skilled in the artto make or use the disclosure. Various modifications to the disclosurewill be readily apparent to those skilled in the art, and the genericprinciples defined herein may be applied to other variations withoutdeparting from the scope of the disclosure. Thus, the disclosure is notlimited to the examples and designs described herein, but is to beaccorded the broadest scope consistent with the principles and novelfeatures disclosed herein.

What is claimed is:
 1. A method for wireless communication, comprising:transmitting control channel transmissions according to a first beammonitoring pattern of a set of beam monitoring patterns; transmittingcontrol channel transmissions according to a second beam monitoringpattern of the set of beam monitoring patterns during a time durationbased at least in part on a determination to override the first beammonitoring pattern with the second beam monitoring pattern during thetime duration; and transmitting, subsequent to the time duration,control channel transmissions according to the first beam monitoringpattern.
 2. The method of claim 1, further comprising: transmitting anindication to a user equipment (UE) that indicates to use the secondbeam monitoring pattern based at least in part on one or more firsttransmission beams of the first beam monitoring pattern exceeding one ormore reliability metrics.
 3. The method of claim 2, wherein transmittingthe indication comprises: transmitting the indication in a medium accesscontrol (MAC) control element (CE) or in downlink control information(DCI).
 4. The method of claim 2, wherein transmitting the indicationcomprises: transmitting the indication in one or more of the controlchannel transmissions transmitted according to the first beam monitoringpattern.
 5. The method of claim 2, wherein the time duration is a numberof slots.
 6. The method of claim 2, further comprising: determining,before the time duration expires, that the one or more firsttransmission beams of the first beam monitoring pattern continue toexceed the one or more reliability metrics; and continuing to transmitcontrol channel transmissions in one or more second transmission beamsof the second beam monitoring pattern for a second iteration of the timeduration based at least in part on the determining.
 7. The method ofclaim 6, wherein at least one transmission beam from the one or moresecond transmission beams is different than at least one transmissionbeam from the one or more first transmission beams.
 8. The method ofclaim 2, further comprising: determining, before the time durationexpires, that the one or more first transmission beams of the first beammonitoring pattern fail to meet or exceed the one or more reliabilitymetrics; and switching back to transmitting the control channeltransmissions in the one or more first transmission beams according tothe first beam monitoring pattern based at least in part on thedetermining.
 9. The method of claim 2, wherein the first beam monitoringpattern maps a first subset of transmission beams from the one or morefirst transmission beams of the first beam monitoring pattern to a firstnumber of slots in a first subset of time periods within the timeduration and a second subset of transmission beams from the one or morefirst transmission beams of the first beam monitoring pattern to asecond number of slots in a second subset of time periods within thetime duration.
 10. The method of claim 2, further comprising:determining that the one or more first transmission beams of the firstbeam monitoring pattern exceeds the one or more reliability metricsbased at least in part on: determining that a predetermined number ofacknowledgments are received during a given time period; determiningthat a signal quality associated with the one or more first transmissionbeams satisfies a signal quality threshold; or any combination thereof.11. The method of claim 2, further comprising: determining that the oneor more first transmission beams of the first beam monitoring patternexceeds the one or more reliability metrics based at least in part on:receiving an indication from a user equipment (UE) that the one or morefirst transmission beams exceeds a reliability threshold; andacknowledging receipt of the indication.
 12. An apparatus for wirelesscommunication, comprising: a processor; memory in electroniccommunication with the processor; and instructions stored in the memoryand operable, when executed by the processor, to cause the apparatus to:transmit control channel transmissions according to a first beammonitoring pattern of a set of beam monitoring patterns; transmitcontrol channel transmissions according to a second beam monitoringpattern of the set of beam monitoring patterns during a time durationbased at least in part on a determination to override the first beammonitoring pattern with the second beam monitoring pattern for the timeduration; and transmit, subsequent to the time duration, control channeltransmissions according to the first beam monitoring pattern.
 13. Theapparatus of claim 12, wherein the instructions, when executed by theprocessor, further cause the apparatus to: transmit an indication to auser equipment (UE) that indicates to use the second beam monitoringpattern based at least in part on one or more first transmission beamsof the first beam monitoring pattern exceeding one or more reliabilitymetrics.
 14. The apparatus of claim 13, wherein the instructions totransmit the indication, when executed by the processor, further causethe apparatus to: transmit the indication in a medium access control(MAC) control element (CE) or in downlink control information (DCI). 15.The apparatus of claim 13, wherein the instructions to transmit theindication, when executed by the processor, further cause the apparatusto: transmit the indication in one or more of the control channeltransmissions transmitted according to the first beam monitoringpattern.
 16. The apparatus of claim 13, wherein the time duration is anumber of slots.
 17. A method for wireless communication, comprising:receiving control channel transmissions according to a first beammonitoring pattern of a set of beam monitoring patterns; receivingcontrol channel transmissions according to a second beam monitoringpattern of the set of beam monitoring patterns during a time durationbased at least in part on a determination to override the first beammonitoring pattern with the second beam monitoring pattern during thetime duration; and receiving, subsequent to the time duration, controlchannel transmissions according to the first beam monitoring pattern.18. The method of claim 17, further comprises: receiving an indicationthat indicates to use the second beam monitoring pattern based at leastin part on one or more first transmission beams of the first beammonitoring pattern exceeding one or more reliability metrics.
 19. Themethod of claim 18, wherein receiving the indication comprises:receiving the indication in a medium access control (MAC) controlelement (CE) or in uplink control information (UCI).
 20. The method ofclaim 18, wherein the time duration is preconfigured or is indicated inthe indication.
 21. The method of claim 18, wherein the time duration isa number of slots.
 22. The method of claim 18, further comprising:determining, before the time duration expires, that the one or morefirst transmission beams of the first beam monitoring pattern continueto exceed the one or more reliability metrics; and continuing toreceive, according to the second beam monitoring pattern for a seconditeration of the time duration, the control channel transmissionsaccording to the second beam monitoring pattern based at least in parton the determining.
 23. The method of claim 18, further comprising:determining, before the time duration expires, that the one or morefirst transmission beams of the first beam monitoring pattern fail tomeet or exceed the one or more reliability metrics; and switching backto receiving the control channel transmissions according to the firstbeam monitoring pattern based at least in part on the determining. 24.The method of claim 18, further comprising: determining that the one ormore first transmission beams of the first beam monitoring patternexceed the one or more reliability metrics based at least in part on:determining that a predetermined number of transmissions associated withthe one or more first transmission beams are received during a giventime period, determining that a signal quality associated with the oneor more first transmission beams satisfies a signal quality threshold;or any combination thereof.
 25. The method of claim 18, furthercomprising: determining the one or more first transmission beams of thefirst beam monitoring pattern exceeds the one or more reliabilitymetrics based at least in part on: receiving an indication from a basestation that the one or more first transmission beams exceeds areliability threshold; and acknowledging receipt of the indication. 26.An apparatus for wireless communication, comprising: a processor; memoryin electronic communication with the processor; and instructions storedin the memory and operable, when executed by the processor, to cause theapparatus to: receive control channel transmissions in one or more firsttransmission beams according to a first beam monitoring pattern of a setof beam monitoring patterns; receive control channel transmissionsaccording to a second beam monitoring pattern of the set of beammonitoring patterns during a time duration based at least in part on adetermination to override the first beam monitoring pattern with thesecond beam monitoring pattern during the time duration; and receive,subsequent to the time duration, control channel transmissions accordingto the first beam monitoring pattern.
 27. The apparatus of claim 26,wherein the instructions, when executed by the processor, further causethe apparatus to: receive an indication that indicates to use the secondbeam monitoring pattern based at least in part on one or more firsttransmission beams associated with the first beam monitoring patternexceeding one or more reliability metrics.
 28. The apparatus of claim27, wherein the instructions to receive the indication, when executed bythe processor, further cause the apparatus to: receive the indication ina medium access control (MAC) control element (CE) or in downlinkcontrol information (DCI).
 29. The apparatus of claim 27, wherein thetime duration is preconfigured or is indicated in the indication. 30.The apparatus of claim 27, wherein the time duration is a number ofslots.